Home / 3,213.57-4,434.75-1,887.30

Finding the Fourth Proportional to 3,213.57, 4,434.75 and 1,887.30

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Solution

The fourth proportional to 3,213.57, 4,434.75 and 1,887.30 is: 2,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.57 : 4,434.75 = 1,887.30 : x
  2. Step 2: Convert to fraction form
    3,213.57/4,434.75 = 1,887.30/x
  3. Step 3: Cross multiply
    3,213.57x = 4,434.75 × 1,887.30
  4. Step 4: Simplify right side
    3,213.57x = 8,369,703.68
  5. Step 5: Solve for x
    x = 8,369,703.68/3,213.57
  6. Step 6: Final answer
    x = 2,604.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.